20199077745

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{920441}}^1$

素因数の和:920486

約数の個数: 64

約数和(自身を含む): 42413967360

約数和(自身を除く): 22214889615

約数列:

[1, 3, 5, 7, 11, 15, 19, 21, 33, 35, 55, 57, 77, 95, 105, 133, 165, 209, 231, 285, 385, 399, 627, 665, 1045, 1155, 1463, 1995, 3135, 4389, 7315, 21945, 920441, 2761323, 4602205, 6443087, 10124851, 13806615, 17488379, 19329261, 30374553, 32215435, 50624255, 52465137, 70873957, 87441895, 96646305, 122418653, 151872765, 192372169, 212621871, 262325685, 354369785, 367255959, 577116507, 612093265, 961860845, 1063109355, 1346605183, 1836279795, 2885582535, 4039815549, 6733025915, 20199077745]

約数ペア:

[(1, 20199077745), (3, 6733025915), (5, 4039815549), (7, 2885582535), (11, 1836279795), (15, 1346605183), (19, 1063109355), (21, 961860845), (33, 612093265), (35, 577116507), (55, 367255959), (57, 354369785), (77, 262325685), (95, 212621871), (105, 192372169), (133, 151872765), (165, 122418653), (209, 96646305), (231, 87441895), (285, 70873957), (385, 52465137), (399, 50624255), (627, 32215435), (665, 30374553), (1045, 19329261), (1155, 17488379), (1463, 13806615), (1995, 10124851), (3135, 6443087), (4389, 4602205), (7315, 2761323), (21945, 920441)]